.topReturn{position:fixed;top:0;left:0;width:8rem;height:0.8rem;background-color:#0F9BD6;color:#fff;line-height:30px;font-size:14px;padding-left:0.15rem;z-index:1000;text-align:center;line-height:0.8rem;font-size:0.34rem;}
.topReturn svg{height:0.8rem;width:0.4rem;position:absolute;top:0;left:0.2rem;}
.topReturn2{width:100%;height:40px;background-color:#0F9BD6;color:#fff;line-height:40px;font-size:16px;z-index:1000;text-align:center;}
.topReturn2 svg{height:40px;width:20px;position:absolute;top:0;left:10px;}
.join_blacklist{width:0.4rem;height:0.4rem;position:absolute;top:0.2rem;right:0.3rem;background: url(/img/join-blacklist.png) no-repeat 0 center;background-size: 100% auto;}